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farmergiles · 08-26-2009, 03:20 AM

Looks like you are doing fine with watering- they're not wilting anyway.

Some yellowing of the first leaves (cotyledons) is showing probably caused by a combination of the soil being a bit rich and possible water pH issue (chances are you are right about it being alkaline). Don`t panic.

The first set of leaves will wither away in any case, they're only there to get the plant started. If the seedling survives long enough to establish a decent root system it will be better able to cope with it's environment

You can get a pH test kit from a hydro store, garden centre or an aquarium store. You can lower pH with nitric or phosphoric acid or even lemon juice at a pinch.

One thing that will help- leave your water to stand for 24 hrs before watering- this allows any chlorine in the water to evaporate, improving the water quality.

The seedling shown is stretching a bit, more light is always a bonus (or moving the light closer). Like PG says you can build the soil up around the stem to give support. A bit of a breeze helps encourage sturdy growth.

08-26-2009, 03:20 AM	#16 (permalink)
farmergiles Yahookan Join Date: Sep 2006 Location: Sick of the hatred and the lies Posts: 7,788 Thanks: 2,275 Thanked 3,740 Times in 2,548 Posts	Looks like you are doing fine with watering- they're not wilting anyway. Some yellowing of the first leaves (cotyledons) is showing probably caused by a combination of the soil being a bit rich and possible water pH issue (chances are you are right about it being alkaline). Don`t panic. The first set of leaves will wither away in any case, they're only there to get the plant started. If the seedling survives long enough to establish a decent root system it will be better able to cope with it's environment You can get a pH test kit from a hydro store, garden centre or an aquarium store. You can lower pH with nitric or phosphoric acid or even lemon juice at a pinch. One thing that will help- leave your water to stand for 24 hrs before watering- this allows any chlorine in the water to evaporate, improving the water quality. The seedling shown is stretching a bit, more light is always a bonus (or moving the light closer). Like PG says you can build the soil up around the stem to give support. A bit of a breeze helps encourage sturdy growth. __________________ Cultivate a stoic calmness *Fuck the Monkeys* Every Kind of Vice